Add the GPIO pin of the PoE passthrough switch on the Aruba AP-303H.
Power is activated when the pin is low. It enables a PSE chip, so power
is only supplied to downstream devices when they are 802.3af/at
compliant devices.
Ensure you use a sufficient power supply when chaining a consuming
device after the AP.
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit b40cc46cc882ff97f2752e7837173ffc9f884eb9)
dd4b05ee8a